Step 12: Point Win Probability (PWP)

Interactive Dashboard (click me) (Quick note: all PWP in the chart are for Stanford. Therefore if PWP hits 100%, Stanford won the point. If PWP hits 0%, Wisconsin won the point. Anything above 50% means Stanford has the advantage, anything get the idea. I find it much cleaner to use a single line [...]

step 6: if he’s a good hitter, why doesn’t he hit good?

% split of Terminal vs. Non-Terminal attacks 1. Welcome to attacking: the most important skill in our game. I'd also argue it's the most interesting, least understood, and most dynamic of our game - making it the best place to pick some low-hanging fruit. 2. We need to understand the reality of attacking. As you [...]

Guest Post: Dwight Wynne – Match Win Probabilities

Dwight Wynne teaches statistics at California State University, Fullerton and supervises student projects helping their women's volleyball team get more out of their data. Introduction One tool that has become increasingly common in the modern consumption of sports analytics is a win probability graph. A win probability graph shows, given the current score and time [...]

Season Trends

Madeline Gates - 2019 Stanford University Interactive Dashboard: Is your team getting better or worse as the season progresses? Are your players developing and performing stronger as the year goes on? In the chart above, we take a look at Madeline Gates, the middle from Stanford. We're looking at a rolling average of her [...]

Expectation vs. Reality

Interactive Dashboard: This is the direction I think the sport of volleyball needs to go - getting all skills, all contacts, all situations, and all performance evaluation into the single language of points. The same way the NBA has expected points per shot based on the location on the floor + number of defenders, [...]